[20v] '91 CQ erratic power loss

[Huw Powell]

Check that idle switch, too!  And check that it stays open at full 
throttle...

On CIS cars the idle switch causes a fuel cut to drop the car to idle. 
Yours might have a similar function.

On 2/3/2015 9:07 PM, Christopher Gharibo wrote:
> Here are the codes:
>
> 00524 knock sensor 1 (g61)
> 00516 closed throttle (idle) position switch (f60)
>
> Looks like I should just change the knock sensor
>
> On Feb 3, 2015, at 12:41 PM, John Lagnese <jlagnese at massed.net> wrote:
>
> Considering only partial power loss, I would be much more inclined to agree with the knock sensor as culprit.
> ----- Original Message ----- From: "Christopher Gharibo" <cgharibo at usa.net>
> To: "george" <gstroe at cogeco.ca>
> Cc: "20V List" <20v at lists.20v.org>; <quattro at audifans.com>
> Sent: Tuesday, February 03, 2015 6:15 AM
> Subject: Re: [20v] '91 CQ erratic power loss
>
>
>> Ok, I will check the codes.
>>
>> I just wanted to clarify that when the car "loses power" it's only by about 30%.
>>
>> Thank you.
>>
>>
>>
>> On Feb 2, 2015, at 10:02 PM, george <gstroe at cogeco.ca> wrote:
>>
>> Knock sensors. The symptoms on my car: at constant highway speed the engine will suddenly hesitate for 30 sec to 60 sec then regains full power for a couple of minutes then again, the cycle repeats itself. In city driving at low rev when trying to switch into 4th gear at about 60 Km/h the engine will hesitate and almost stalled, had to downshift or depress the clutch. Check the codes.
>>
>> George
>>
>> -----Original Message----- From: Christopher Gharibo
>> Sent: Monday, February 02, 2015 4:35 PM
>> To: <quattro at audifans.com> ; 20V List
>> Subject: [20v] '91 CQ erratic power loss
>>
>> My '91 CQ drives great with one caveat.
>>
>> Most of the time, at full throttle, the car suddenly loses power and regains it all in a matter of seconds. It's as if the ECU is changing to a different program or the AC compressor is kicking in and out, although AC is off.
>>
>> Any advice would be appreciated.
>>
>> Thank you.
>>
>> CG
>>
>>
>>
>>
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